Radiant|Lab Grown|IGI

1.23ct D VVS1 Radiant Lab Grown Diamond

VG • D/VVS1 • IGI LG669470408

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG669470408

Diamond specifications and retailer prices

From £215 GBP
$288 USD
As of October 30, 2026
Save £819 GBP (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,074 GBP at MOH London · As of October 18, 2026
View at MOH London

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG669470408 or 669470408. Listed at 21 retailers as of October 30, 2026, with a 381% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669470408
Dimensions7.59 × 5.18 × 3.77 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.59 mm5.18 mm1.23 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669470408
Side View
Table 63.0%Crown 39.3°Girdle: Slightly ThickPavilion 36.4°Culet: NoneDepth 72.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,074 GBP|Low: £206 GBP|High: £1,081 GBP|Avg: £547 GBP|+0.5%
MOH London
Retailer 2
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Retailer 4
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Retailer 11
Retailer 12
Retailer 13
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Retailer 20
October 30, 2026
Retailer 19£215 GBP
Retailer 4£240 GBP
Retailer 7£249 GBP
Retailer 6£266 GBP
Retailer 20£266 GBP
Retailer 2£305 GBP
Retailer 10£344 GBP
Retailer 18£437 GBP
Retailer 15£440 GBP
Retailer 9£452 GBP
Retailer 14£458 GBP
Retailer 11£468 GBP
Retailer 12£479 GBP
Retailer 13£736 GBP
Retailer 17£819 GBP
Retailer 16£840 GBP
Retailer 5£857 GBP
Retailer 8£1,007 GBP
Retailer 3£1,034 GBP
MOH London£1,074 GBP

35 data points across 20 retailers

21 retailers£215 GBP to £1,034 GBP

A
Cheapest Retailer
-
£215 GBP
$288 USD
A
Retailer 2
-
£240 GBP
$322 USD
View
Final sale: no returns
A
Retailer 3
-
£249 GBP
$334 USD
View
A
Retailer 4
-
£266 GBP
$357 USD
View
A
Retailer 5
-
£266 GBP
$357 USD
View
A
Retailer 6
-
£305 GBP
View
Retailer 7
-
£344 GBP
HK$3,600 HKD
View
Price last confirmed 25 days ago
B+
Retailer 8
-
£437 GBP
$586 USD
View
B+
Retailer 9
-
£440 GBP
$590 USD
View
B+
Retailer 10
-
£452 GBP
$606 USD
View
B+
Retailer 11
-
£458 GBP
ZAR 9,912 ZAR
View
B+
Retailer 12
-
£468 GBP
$627 USD
View
B
Retailer 13
-
£736 GBP
A$1,518 AUD
View
B
Retailer 14
-
£819 GBP
$1,097 USD
View
Retailer 15
-
£840 GBP
$1,125 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
£857 GBP
$1,148 USD
View
B
Retailer 17
-
£869 GBP
$1,164 USD
View
Retailer 18
-
£1,007 GBP
SGD 1,823 SGD
View
Price last confirmed 23 days ago
B
Retailer 19
-
£1,012 GBP
View
B
Retailer 20
-
£1,034 GBP
$1,385 USD
View
Most Expensive
MOH London
LG669470408 · Oct 18
£1,074 GBP
View
Price last confirmed 12 days ago
20 more retailers have this diamond
Prices start from £215 GBPSave up to £819 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.23ct Radiant
£215 GBP